NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-12-15 T19:03:46 PST
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For refcode 2010ApJ...715..833O:
Retrieve 72 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
2010ApJ...715..833O The Standardized Candle Method for Type II Plateau Supernovae Olivares E., Felipe; Hamuy, Mario; Pignata, Giuliano; Maza, Jose; Bersten, Melina; Phillips, Mark M.; Suntzeff, Nicholas B.; Filippenko, Alexei V.; Morrel, Nidia I.; Kirshner, Robert P.; Matheson, Thomas Abstract. In this paper, we study the "standardized candle method" using a sample of 37 nearby (redshift z < 0.06) Type II plateau supernovae having BVRI photometry and optical spectroscopy. An analytic procedure is implemented to fit light curves, color curves, and velocity curves. We find that the V-I color toward the end of the plateau can be used to estimate the host-galaxy reddening with a precision of {sigma}(A_V_) = 0.2 mag. The correlation between plateau luminosity and expansion velocity previously reported in the literature is recovered. Using this relation and assuming a standard reddening law (R_V_ = 3.1), we obtain Hubble diagrams (HDs) in the BVI bands with dispersions of ~0.4 mag. Allowing R_V_ to vary and minimizing the spread in the HDs, we obtain a dispersion range of 0.25-0.30 mag, which implies that these objects can deliver relative distances with precisions of 12%-14%. The resulting best-fit value of R_V_ is 1.4 +/- 0.1. Key words: distance scale, galaxies: distances and redshifts, supernovae: general
Retrieve 72 NED objects in this reference.
Please click here for ADS abstract

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